170 Matching Results

Search Results

Results: 1 - 24 next
open access

Bose-Einstein correlations in e/sup +/e/sup -/ collisions

Description: The MARK II detector is used to study the Bose-Einstein correlation between pairs and triplets of charged pions produced in hadronic decays of the J)psi), the ..sqrt..s = 4 to 7 GeV continuum above the J)psi), two photon events at ..sqrt..s = 29 GeV, and e/sup )plus/)e/sup )minus/) annihilation events at ..sqrt..s = 29 GeV as a function of Q/sup 2/, the four-momentum transfer squared. After corrections for Coulomb effects and pion misidentification, we find a nearly full Bose-Einstein enhanceme… more
Date: December 1, 1987
Creator: Juricic, I.
Partner: UNT Libraries Government Documents Department
open access

Revised Users Manual, Pulverized Coal Gasification or Combustion: 2-Dimensional (87-PCGC-2): Final Report, Volume 2. [87-PCGC-2]

Description: A two-dimensional, steady-state model for describing a variety of reactive and non-reactive flows, including pulverized coal combustion and gasification, is presented. Recent code revisions and additions are described. The model, referred to as 87-PCGC-2, is applicable to cylindrical axi-symmetric systems. Turbulence is accounted for in both the fluid mechanics equations and the combustion scheme. Radiation from gases, walls, and particles is taken into account using either a flux method or dis… more
Date: December 1, 1987
Creator: Smith, P. J.; Smoot, L. D. & Brewster, B. S.
Partner: UNT Libraries Government Documents Department
open access

Use of transportable storage casks in the nuclear waste management system: Appendices

Description: A study was performed to determine the viability of the use of transportable storage casks (TSCs), and other metal casks that are designed primarily for storage but which might be used to ship their stored contents to DOE on a one-time use basis (referred to in this study as storage only casks, or SOCs), in the combined utility/DOE spent fuel management system. The viability of the use of TSCs and SOCs was assessed in terms of the costs and savings involved in their use, the sensitivity of thes… more
Date: December 1, 1987
Partner: UNT Libraries Government Documents Department
open access

Estimating properties of unsaturated fractured formations from injection and falloff tests

Description: A new technique for calculating hydraulic properties of unsaturated fractured formations is proposed as an alternative to the common approach involving steady-state analysis of multi-rate gas injection tests. This method is based on graphical analysis of unsteady-state pressure-time data from an injection-falloff test sequence. Both gas and water injection testing are considered. Flow in a horizontal fracture of limited lateral extent, bounded above and below by an impermeable matrix, and inter… more
Date: December 1, 1987
Creator: Mishra, S.; Bodvarsson, G.S. & Attanayake, M.P.
Partner: UNT Libraries Government Documents Department
open access

Microstructural evolution in fast-neutron-irradiated austenitic stainless steels

Description: The present work has focused on the specific problem of fast-neutron-induced radiation damage to austenitic stainless steels. These steels are used as structural materials in current fast fission reactors and are proposed for use in future fusion reactors. Two primary components of the radiation damage are atomic displacements (in units of displacements per atom, or dpa) and the generation of helium by nuclear transmutation reactions. The radiation environment can be characterized by the ratio … more
Date: December 1, 1987
Creator: Stoller, R.E.
Partner: UNT Libraries Government Documents Department
open access

2-Dimensional studies of the disk-and-washer and side-coupled resonant cavity structures

Description: The work done consists of three parts: optimizing the disk-and-washer (DAW) structure at ..beta.. = 0.5662 corresponding to E = 200 MeV; comparing the DAW structure with the side-coupled (SCS) structure at various values of beta, ranging from ..beta.. = 0.4569 and E = 116 MeV to ..beta.. = 0.7131 and E = 400 MeV; and re-optimizing the DAW structure at ..beta.. = 0.7131. 4 refs., 51 figs., 41 tabs.
Date: December 1, 1987
Creator: Larry, L.D. Jr.
Partner: UNT Libraries Government Documents Department
open access

Teratology studies of lewisite and sulfur mustard agents: Effects of lewisite in rats and rabbits: Final report

Description: Lewisite was administered to rats and rabbits by intragastric intubation. Maternal animals were weighed periodically, and, at necropsy (20 dg (days of gestation) in rats and 30 dg in rabbits), were examined for gross lesions of major organs and reproductive performances; live fetuses were weighed and examined for external, internal and skeletal defect. In rats, a dose level of 1.5 mg/kg did not induce toxic or teratogenic responses in maternal and fetal body weights and a significant reduction … more
Date: December 31, 1987
Creator: Hackett, P L; Sasser, L B; Rommereim, R L; Cushing, J A; Buschbom, R L & Kalkwarf, D R
Partner: UNT Libraries Government Documents Department
open access

300 Area Process Trench Sediment Analysis Report

Description: This report describes the results of a sampling program for the sediments underlying the Process Trenches serving the 300 Area on the Hanford reservation. These Process Trenches were the subject of a Closure Plan submitted to the Washington State Department of Ecology and to the US Environmental Protection Agency in lieu of a Part B permit application on November 8, 1985. The closure plan described a proposed sampling plan for the underlying sediments and potential remedial actions to be determ… more
Date: December 1, 1987
Creator: Zimmerman, M.G. & Kossik, C.D.
Partner: UNT Libraries Government Documents Department
open access

Heavy ion fusion accelerator research (HIFAR) year-end report, April 1, 1987-September 30, 1987

Description: The basic objective of the Heavy Ion Fusion Accelerator Research (HIFAR) program is to access the suitabilty of heavy ion accelerators as iginiters for Inertial Confinement Fusion (ICF). A specific accerelator techonolgy, the induction linac, has been studied at the Lawerence Berkeley Laboratory and has reached the point at which its viability for ICF applications can be assessed over the next few years. The HIFAR program addresses the generation of high-power, high-brightness beams of heavy io… more
Date: December 1, 1987
Partner: UNT Libraries Government Documents Department
open access

Water geochemistry and hydrogeology of the shallow aquifer at Roosevelt Hot Springs, southern Utah: A hot dry rock prospect

Description: On the western edge of the geothermal field, three deep holes have been drilled that are very hot but mostly dry. Two of them (Phillips 9-1 and Acord 1-26 wells) have been studied by Los Alamos National Laboratory for the Hot Dry Rock (HDR) resources evaluation program. A review of data and recommendations have been formulated to evaluate the HDR geothermal potential at Roosevelt. The present report is directed toward the study of the shallow aquifer of the Milford Valley to determine if the lo… more
Date: December 1, 1987
Creator: Vuataz, F. D. & Goff, F.
Partner: UNT Libraries Government Documents Department
open access

Anisotropic yielding of rocks at high temperatures and pressures

Description: Results to date are: All of the starting materials for the three year project have been collected. Included in our collection are relatively fine-grained, fresh, oriented blocks of schist, gneiss, and micaceous quartzite with well-defined foliations and lineations as well as granite blocks oriented with respect to the principal quarrying orientations, the rift, grain, and hardway. A suite of samples has also been collected from an exposed granite stock and surrounding country rocks in order to … more
Date: December 1, 1987
Creator: Kronenberg, A.K.; Russell, J.E.; Handin, J.; Gottschalk, R.R. & Shea, W.T.
Partner: UNT Libraries Government Documents Department
open access

Inhalation developmental toxicology studies: Teratology study of n-hexane in rats: Final report

Description: The straight chain hydrocarbon, n-hexane, is a volatile, ubiquitous solvent used in industrial, academic, and smaller commercial environments. The significant opportunity for women of child-bearing age to be exposed to this chemical prompted the undertaking of a study to assess the developmental toxicity of n-hexane in an animal model. Timed-pregnant (30 animals per group) and virgin (10 animals per group) Sprague-Dawley rats were exposed to 0 (filtered air), 200, 1000, and 5000 ppM n-hexane (9… more
Date: December 1, 1987
Creator: Mast, T.J.
Partner: UNT Libraries Government Documents Department
open access

Geothermal alteration of sediments in the Salton Sea scientific drill hole: Petrophysical properties and mass changes during alteration: Final report

Description: This report has been divided into two sections. The first deals with the results of the petrophysical measurements, and the second concentrates on the distribution of alteration minerals and textures, and on a series of calculations of geochemical changes that occurred during alteration. 32 refs., 23 figs., 10 tabs.
Date: December 11, 1987
Creator: McDowell, S.D.
Partner: UNT Libraries Government Documents Department
open access

Analysis of Proposed Gamma-Ray Detection System for the Monitoring of Core Water Inventory in a Pressurized Water Reactor

Description: An initial study has been performed of the feasibility of employing an axial array of gamma detectors located outside the pressure vessel to monitor the coolant in a PWR. A one-dimensional transport analysis model is developed for the LOFT research reactor and for a mock-PWR geometry. The gamma detector response to coolant voiding in the core and down-comer has been determined for both geometries. The effects of various conditions (for example, time after shutdown, materials in the transport pa… more
Date: December 1987
Creator: Markoff, Diane Melanie
Partner: UNT Libraries Government Documents Department
open access

Screening and Degradation Tests of Linear-Polymer Additives for District Heating Applications

Description: In closed-loop district heating and cooling (DHC) systems, the addition of a friction-reducing additive to the working fluid conveying energy between the energy sources and end users would allow increased load-handling capability (in an existing system) or the use of much smaller pipes and/or pumps (in a new system). As the first step in identifying friction-reducing additives that have a reasonable lifetime at DHC temperatures, two high-molecular-weight linear-polymer additives have been teste… more
Date: December 1987
Creator: Choi, U. S.; Cho, Young I. & Kasza, Kenneth Edmund
Partner: UNT Libraries Government Documents Department
open access

Optimal allocation of International Atomic Energy Agency inspection resources

Description: The Safeguards Department of the International Atomic Energy Agency (IAEA) conducts inspections to assure the peaceful use of a state's nuclear materials and facilities. Because of limited resources for conducting inspections, the careful disposition of inspection effort among these facilities is essential if the IAEA is to attain its safeguards goals. This report describes an optimization procedure for assigning an inspection effort to maximize attainment of IAEA goals. The procedure does not … more
Date: December 1, 1987
Creator: Markin, J.T.
Partner: UNT Libraries Government Documents Department
open access

Laboratory leach tests of phosphate/sulfate waste grout and leachate adsorption tests using Hanford sediment

Description: An assessment of the long-term risks posed by grout disposal at Hanford requires data on the ability of grout to resist leaching of waste species contained in the grout via contact with water that percolates through the ground. Additionally, data are needed on the ability of Hanford sediment (soil) surrounding the grout and concrete vault to retard migration of any wastes released from the grout. This report describes specific laboratory experiments that are producing empirical leach rate data … more
Date: December 1, 1987
Creator: Serne, R. J.; Martin, W. J.; McLaurine, S. B.; Airhart, S. P.; LeGore, V. L. & Treat, R. L.
Partner: UNT Libraries Government Documents Department
open access

ORNL Long-Range Environmental and Waste Management Plan: Program overview and summary

Description: The primary purpose is to provide a thorough and systematic planning document to reflect the continuing process of site assessment, strategy development, and planning for the current and long-term control of environmental issues, waste management practices, and remedial action requirments. The document also provides an estimate of the resources required to implenent the current plan. As with any document of this nature, the near-term (one to three years) part of the plan is a realistic assessme… more
Date: December 1, 1987
Creator: Bates, L. D.; Berry, J. B.; Butterworth, G. E.; du Mont, S. P., III; Easterday, C. A.; Geisler, A. H. et al.
Partner: UNT Libraries Government Documents Department
open access

Characteristics of spent fuel, high-level waste, and other radioactive wastes which may require long-term isolation: Appendix 2A, Physical descriptions of LWR (Light-Water Reactor) fuel assemblies

Description: This appendix includes a four-page Physical Description report for each assembly type identified from the current data. Where available, a drawing of an assembly follows the appropriate Physical Description report. If no drawing is available for an assembly, a cross-reference to a similar assembly is provided if possible. For Advanced Nuclear Fuels, Babcock and Wilcox, Combustion Engineering, and Westinghouse assemblies, information was obtained via subcontracts with these fuel vendors. Data fo… more
Date: December 1, 1987
Partner: UNT Libraries Government Documents Department
open access

Small space reactor power systems for unmanned solar system exploration missions

Description: A preliminary feasibility study of the application of small nuclear reactor space power systems to the Mariner Mark II Cassini spacecraft/mission was conducted. The purpose of the study was to identify and assess the technology and performance issues associated with the reactor power system/spacecraft/mission integration. The Cassini mission was selected because study of the Saturn system was identified as a high priority outer planet exploration objective. Reactor power systems applied to this… more
Date: December 1, 1987
Creator: Bloomfield, H. S.
Partner: UNT Libraries Government Documents Department
open access

Environmental surveillance data report for the third quarter of 1987

Description: During the third quarter of 1987, over 1600 samples which represent more than 5000 analyses and measurements were collected by the Environmental Monitoring and Compliance (EMC) Department. Uranium concentrations measured on air filters near the Y-12 plant were higher than normal due to a release from that facility in May. More than 60% of the noncompliances with the NPDES permit for the third quarter occurred in July. These were primarily in total suspended solids at the Sewage Treatment Plant.… more
Date: December 1, 1987
Creator: Daniels, K. L.; Goldberg, P. Y.; Horwedel, B. M.; McCollough, I. L.; Osborne-Lee, A. E.; Owenby, R. K. et al.
Partner: UNT Libraries Government Documents Department
open access

Deterministic uncertainty analysis

Description: This paper presents a deterministic uncertainty analysis (DUA) method for calculating uncertainties that has the potential to significantly reduce the number of computer runs compared to conventional statistical analysis. The method is based upon the availability of derivative and sensitivity data such as that calculated using the well known direct or adjoint sensitivity analysis techniques. Formation of response surfaces using derivative data and the propagation of input probability distributi… more
Date: December 1, 1987
Creator: Worley, B. A.
Partner: UNT Libraries Government Documents Department
open access

Stratigraphy, Petrology, and Geochemistry of the Spurr Volcanic Complex, Eastern Aleutian Arc, Alaska. [(Appendix for Geothermal Fluid Chemistry)]

Description: The Spurr Volcanic Complex (SVC) is a calcalkaline, medium-K, sequence of andesites erupted over the last quarter of a million years by the easternmost currently active volcanic center in the Aleutian Arc. The ancestral Mt. Spurr was built mostly of andesites of uniform composition (58 to 60% SiO/sub 2/), although andesite production was episodically interrupted by the introduction of new batches of more mafic magma. Near the end of the Pleistocene the ancestral Mt. Spurr underwent Bezyianny-ty… more
Date: December 1, 1987
Creator: Nye, C. J.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen